Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 841 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a tub of water (d) a results table
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a results table (d) a towel for spills
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a battery cell (d) a results table
6. 6.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) a coin (d) a dry leaf
7. 7.True or false: an ice cube sinks in water. (a) False (b) True
8. 8.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a results table (c) a towel for spills (d) small test objects
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
13. 13.🛟 Which of these sinks in water? (a) a dry leaf (b) a steel spoon (c) a cork (d) an ice-cream stick
14. 14.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the air above (d) the tub
15. 15.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a battery cell
17. 17.True or false: a cork sinks in water. (a) True (b) False
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) small test objects (d) a tub of water
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) a results table (d) small test objects
20. 20.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
21. 21.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) an iron nail (d) a cork
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a magnet (d) small test objects
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
24. 24.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
25. 25.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
26. 26.🔍 Which is the odd one out? (a) a ball of clay (b) an ice-cream stick (c) an empty capped bottle (d) a piece of thermocol
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) yeast (d) a balloon
28. 28.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
30. 30.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
31. 31.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a tub of water (c) small test objects (d) a towel for spills
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
35. 35.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a glass marble (c) an ice cube (d) a cork
36. 36.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: a cork floats on water. (a) True (b) False
38. 38.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a ball of clay (c) an empty capped bottle (d) an ice cube
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the tub of water (d) the kind of clay
40. 40.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble

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